The Gargoyle and the Maiden by Sara Ivy Hill

She was his mate. The mother of his child. His betrayer.

Idabel never planned to be a traitor. But when survival inside the walled city of Solvantis meant securing a monster’s bite, she did what she had to do and seduced the stoic gargoyle commander.
She didn’t realize she’d become a weapon used to lead an army to slaughter. Nor did she anticipate that a single night of deception would leave her with child.
Six years later, watch leader Brandt returns from fighting the goblin hordes, victorious but shattered. His body bears the scars of battle, and his mind is haunted by his lost brothers…and his lost memories.
But as he heals, the truth emerges: He has a mate he left behind. A son he’s never met. And a betrayal that cuts deeper than any war wound.

Idabel expected his rage. His vengeance. But she never expected his relentless claim. Because despite everything, the bond between them never truly broke… and now, neither of them can resist the pull.